image.serviceRating {
  width: 78px;
  height: 18px;
  -moz-image-region: rect(0px 78px 18px 0px);
}

image.serviceRating[rating="1"] {
  -moz-image-region: rect(18px 78px 36px 0px);
}
image.serviceRating[rating="2"] {
  -moz-image-region: rect(36px 78px 54px 0px);
}
image.serviceRating[rating="3"] {
  -moz-image-region: rect(54px 78px 72px 0px);
}
image.serviceRating[rating="4"] {
  -moz-image-region: rect(72px 78px 90px 0px);
}
image.serviceRating[rating="5"] {
  -moz-image-region: rect(90px 78px 108px 0px);
}